The Bar/Lounge at Anantara Palais Hansen Vienna Hotel
Palais Hansen Kempinski Vienna's bar/lounge is endorsed by those who travel for a living. Of the 7 professionals tracked on TripExpert, 4 endorsed the bar/lounge, like Fodor's, Frommer's and Jetsetter.
Anantara Palais Hansen Vienna Hotel 
Fodor's
Frommer's
Jetsetter
Star Service
Fodor's "The hotel also has Vienna's largest cigar lounge"
Frommer's "From the lobby, side doorways lead to the restaurants, bars, and cigar lounge"
Jetsetter "Viennese coffee and delicious pastries are served in the Lobby Lounge"
Star Service "There is also a little menu in the bar, and Cohibas are sold in the well-ventilated cigar bar"
